Exposure
- ID
- GRAVI.2024-07-26T01:21:18.480_2
- Header ID
- GRAVI.2024-07-26T01:21:18.480
- Date updated
- 2024-07-26 01:40:36 UTC+0000
- Release date
- 2025-07-26 01:40:35 UTC+0000
- UTC Start
- 2024-07-26 01:21:18.480
- UTC End
- 2024-07-26 01:27:58.480
- MJD Start
- 60517.05646389
- MJD End
- 60517.0610935196
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002097
- Ambient temperature (°C)
- 12.94
- Seeing (arcsec)
- 0.945
Observation
- ID
- 60197
- Category
- science
- Program ID
- 113.267X.001
- Program Title
- GRAVITY ASTROMETRY OF STELLAR CONJUNCTIONS OF ALPHA CENTAURI FOR STELLAR PHYSICS AND EXOPLANETS
- Program Type
- Normal
- PI / COI
- KERVELLA / MÉRAND / LACOUR / FORVEILLE / ARENOU / THEVENIN / BOURDAROT / BRANDNER / STRAUBMEIER / GARCIA / WOILLEZ / EISENHAUER / PAUMARD / ROUSSELET-PERRAUT / PERRIN
Target
- ID
- 44696
- Name
- AlphaCenB
- RA
- 219.84835
- DEC
- -60.8293502777778
Instrument
- Interferometer
- VLTI
- Instrument
- GRAVITY_FT
- Instrument mode
- LOW
- Instrument sub-mode
- DUAL
- Stations
- A0 B2 D0 C1
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-B2 | 23.8560 | 23.8970 | 160.1000 | 161.4000 |
| A0-D0 | 28.4240 | 28.2130 | 104.2000 | 105.9000 |
| A0-C1 | 22.6120 | 22.6180 | 139.8410 | 141.3350 |
| B2-D0 | 24.8320 | 24.5630 | 51.5000 | 52.6000 |
| B2-C1 | 8.2710 | 8.1820 | 51.4760 | 52.5000 |
| D0-C1 | 16.5610 | 16.3810 | 231.5630 | 232.5880 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 113.267X.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60517.05646389 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenB |
| HIERARCH ESO INS SOBJ NAME | StarS4 |
| RA | 219.843551 |
| DEC | -60.82897 |
| HIERARCH ESO INS SPEC RES | MEDIUM |
| HIERARCH ESO INS POLA MODE | SPLIT |
| HIERARCH ESO ISS CONF NTEL | 4 |
| HIERARCH ESO ISS CONF STATION1 | A0 |
| HIERARCH ESO ISS CONF STATION2 | B2 |
| HIERARCH ESO ISS CONF STATION3 | D0 |
| HIERARCH ESO ISS CONF STATION4 | C1 |
| EXPTIME | 414.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 100.0 |
| HIERARCH ESO DET2 NDIT | 4 |
| HIERARCH ESO ISS PBL12 START | 23.856 |
| HIERARCH ESO ISS PBL12 END | 23.897 |
| HIERARCH ESO ISS PBLA12 START | 160.1 |
| HIERARCH ESO ISS PBLA12 END | 161.4 |
| HIERARCH ESO ISS PBL13 START | 28.424 |
| HIERARCH ESO ISS PBL13 END | 28.213 |
| HIERARCH ESO ISS PBLA13 START | 104.2 |
| HIERARCH ESO ISS PBLA13 END | 105.9 |
| HIERARCH ESO ISS PBL14 START | 22.612 |
| HIERARCH ESO ISS PBL14 END | 22.618 |
| HIERARCH ESO ISS PBLA14 START | 139.841 |
| HIERARCH ESO ISS PBLA14 END | 141.335 |
| HIERARCH ESO ISS PBL23 START | 24.832 |
| HIERARCH ESO ISS PBL23 END | 24.563 |
| HIERARCH ESO ISS PBLA23 START | 51.5 |
| HIERARCH ESO ISS PBLA23 END | 52.6 |
| HIERARCH ESO ISS PBL24 START | 8.271 |
| HIERARCH ESO ISS PBL24 END | 8.182 |
| HIERARCH ESO ISS PBLA24 START | 51.476 |
| HIERARCH ESO ISS PBLA24 END | 52.5 |
| HIERARCH ESO ISS PBL34 START | 16.561 |
| HIERARCH ESO ISS PBL34 END | 16.381 |
| HIERARCH ESO ISS PBLA34 START | 231.563 |
| HIERARCH ESO ISS PBLA34 END | 232.588 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.00218 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002014 |
| HIERARCH ESO ISS AMBI TEMP | 12.94 |
| HIERARCH ESO ISS AMBI FWHM START | 0.91 |
| HIERARCH ESO ISS AMBI FWHM END | 0.98 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB |
| HIERARCH ESO FT ROBJ ALPHA | 143923.604 |
| HIERARCH ESO FT ROBJ DELTA | -604945.661 |